feat: new structure for utilities script

configs/utils/.scripts/dns-changer/main.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+declare -A dns_servers=(
+    ["Google"]="8.8.8.8,8.8.4.4"
+    ["Cloudflare"]="1.1.1.1"
+    ["403"]="10.202.10.202,10.202.10.102"
+    ["Shecan"]="178.22.122.100,185.51.200.2"
+)
+
+display_dns_list() {
+    echo "Available DNS Servers:"
+    i=1
+    for dns_name in "${!dns_servers[@]}"; do
+        echo "$i. ${dns_name}"
+        ((i++))
+    done
+}
+
+select_dns() {
+    read -p "Select a DNS server (enter the name or number): " selected_input
+
+    if [[ $selected_input =~ ^[0-9]+$ ]]; then
+        if ((selected_input >= 1 && selected_input <= ${#dns_servers[@]})); then
+            selected_name=$(echo "${!dns_servers[@]}" | cut -d ' ' -f $selected_input)
+            selected_dns=${dns_servers[$selected_name]}
+            echo "Selected DNS server: $selected_dns"
+        else
+            echo "Invalid number. Please select a valid number."
+            select_dns
+        fi
+    else
+        if [[ -n ${dns_servers[$selected_input]} ]]; then
+            selected_dns=${dns_servers[$selected_input]}
+            echo "Selected DNS server: $selected_dns"
+        else
+            echo "Invalid name. Please select a valid name."
+            select_dns
+        fi
+    fi
+}
+
+update_resolv_conf() {
+    sudo sh -c "echo '' > /etc/resolv.conf"
+    IFS=',' read -ra dns_array <<<"$1"
+    for dns in "${dns_array[@]}"; do
+        echo "nameserver $dns" | sudo tee -a /etc/resolv.conf >/dev/null
+    done
+    echo "Updated /etc/resolv.conf with DNS servers: $1"
+}
+
+display_dns_list
+select_dns
+update_resolv_conf "$selected_dns"